Sinborn Pack Fixes

1.0.12 , initial CurseForge release

Four compatibility patches for HistoryStages packs on Forge 1.20.1. Already in production use in Sinborn Odyssey II.

• Stage sync cap raised. HistoryStages sends its stage definitions in one packet capped at 262,144 characters. Packs with full-coverage gating exceed it, and every player is kicked at login with String too big or Invalid player data. The payload is now gzip-compressed, so a complete scroll set syncs without hitting the ceiling.
• Found items stay pickable. onItemPickup ignored lockItemPickup=false and ejected gated items out of player inventories, which broke loot. Gating now applies to crafting, not to possession.
• Per-player JEI hiding. The built-in hide only reads global stages, so packs gating per player showed every item in JEI. Reimplemented against the individual-aware lock check, re-applied on sync and on unlock. The pass is idempotent and tracks hidden entries by ID, so it survives a relog.
• Particle Rain load-order fix. Guarantees ConfigManager.config is non-null at class init, so async sprite stitching cannot crash the loading overlay with Particle Rain 4.0.0-beta.5.

Install on both client and server, at matching versions. The sync fix changes how the packet is encoded, so mismatched sides will not talk to each other.